Add a created and updated date field blueprint and a hook that automatically updates the updated date when saving a page.

blueprints/fields/dates.yml

@@ -0,0 +1,19 @@
+type: fields
+
+fields:
+  created:
+    label: Created
+    type: date
+    default: now
+    required: true
+    time:
+      notation: 12
+      step: 1
+  updated:
+    label: Updated
+    type: date
+    default: now
+    required: true
+    time:
+      notation: 12
+      step: 1

index.php

@@ -24,6 +24,7 @@ Kirby::plugin(
 		"blueprints" => [
 			"fields/link-locations" => __DIR__ . "/blueprints/fields/link-locations.yml",
 			"fields/link-location" => __DIR__ . "/blueprints/fields/link-location.yml",
+			"fields/dates" => __DIR__ . "/blueprints/fields/dates.yml",
 		],
 		"snippets" => [
 			"navbar/primary" => __DIR__ . "/snippets/navbar/primary.php",
@@ -114,6 +115,14 @@ Kirby::plugin(
 
 				return $links;
 			},
+			"page.update:after" => function ($newPage, $oldPage) {
+				if ($newPage->updated()->exists()) {
+					# Set the last updated time to now.
+					$newPage->update([
+						"updated" => date("Y-m-d H:i"),
+					]);
+				}
+			},
 		],
 		"siteMethods" => [
 			/**